RESIZE(1)							  X Window System							 RESIZE(1)

NAME

       resize - set environment and terminal settings to current xterm window size

SYNOPSIS

       resize [ -v | -u | -c ] [ -s [ row col ] ]

DESCRIPTION

       Resize prints a shell command for setting the appropriate environment variables to indicate the current size of xterm window from which the
       command is run.

       Resize determines the command through several steps:

       o   first, it finds the name of the user's shell program.  It uses the SHELL variable if set,  otherwise  it  uses  the	user's	data  from
	   /etc/passwd.

       o   then  it decides whether to use Bourne shell syntax or C-Shell syntax.  It uses a built-in table of known shells, which can be overrid-
	   den by the -u and -c options.

       o   then resize asks the operating system for the terminal settings.  This is the same information which can be manipulated using stty.

       o   then resize asks the terminal for its size in characters.  Depending on whether the "-s option is given, resize uses a different escape
	   sequence to ask for this information.

       o   at this point, resize attempts to update the terminal settings to reflect the terminal window's size in pixels:

	   o   if the -s option is used, resize then asks the terminal for its size in pixels.

	   o   otherwise,  resize asks the operating system for the information and updates that after ensuring that the window's dimensions are a
	       multiple of the character height and width.

	   o   in either case, the updated terminal settings are done using a different system call than used for stty.

       o   then resize updates the terminal settings to reflect any altered values such as its size in rows or columns.  This affects  the  values
	   shown by stty.

       o   finally, resize writes the shell command for setting the environment variables to the standard output.

EXAMPLES

       For  resize's  output to take effect, resize must either be evaluated as part of the command line (usually done with a shell alias or func-
       tion) or else redirected to a file which can then be read in.  From the C shell (usually known as /bin/csh), the following alias  could	be
       defined in the user's .cshrc:

	       %  alias rs 'set noglob; eval `resize`'

       After resizing the window, the user would type:

	       %  rs

       Users of versions of the Bourne shell (usually known as /bin/sh) that don't have command functions will need to send the output to a tempo-
       rary file and then read it back in with the "." command:

	       $  resize > /tmp/out
	       $  . /tmp/out

OPTIONS

       The following options may be used with resize:

       -c      This option indicates that C shell commands should be generated even if the user's current shell is not /bin/csh.

       -s [rows columns]
	       This option indicates that Sun console escape sequences will be used instead of the VT100-style xterm escape codes.   If  rows  and
	       columns are given, resize will ask the xterm to resize itself using those values.

	       Both  of the escape sequences used for this option (first to obtain the window size and second to modify it) are subject to xterm's
	       allowWindowOps resource setting.  The window manager may also choose to disallow the change.

	       The VT100-style escape sequence used to determine the screen size always works for VT100-compatible terminals.  VT100s have no cor-
	       responding way to modify the screensize.

       -u      This option indicates that Bourne shell commands should be generated even if the user's current shell is not /bin/sh.

       -v      This causes resize to print a version number to the standard output, and then exit.

       Note  that the Sun console escape sequences are recognized by XFree86 xterm and by dtterm.  The resize program may be installed as sunsize,
       which causes makes it assume the -s option.

       The rows and columns arguments must appear last; though they are normally associated with the -s option, they are parsed separately.

FILES

       /etc/termcap   for the base termcap entry to modify.

       ~/.cshrc       user's alias for the command.

ENVIRONMENT

       SHELL	      Resize determines the user's current shell by first checking if $SHELL is set, and using that.  Otherwise it determines  the
		      user's  shell  by looking in the password file (/etc/passwd).  Generally Bourne-shell variants (including ksh) do not modify
		      $SHELL, so it is possible for resize to be confused if one runs resize from a Bourne shell spawned from a C shell.

       TERM	      Resize sets this to "xterm" if not already set.

       TERMCAP	      Resize sets this variable on systems using termcap, e.g., when resize is linked with the termcap library rather than a  ter-
		      minfo library.  The latter does not provide the complete text for a termcap entry.

       COLUMNS, LINES Resize sets these variables on systems using terminfo.  Many applications (including the curses library) use those variables
		      when set to override their screensize.

SEE ALSO

       use_env(3)
       csh(1), stty(1), tset(1)
       xterm(1)

AUTHORS

       Mark Vandevoorde (MIT-Athena), Edward Moy (Berkeley)
       Thomas Dickey (invisible-island.net).
       Copyright (c) 1984, 1985 by X Consortium
       See X(7) for a complete copyright notice.

Patch #295							    2013-07-06								 RESIZE(1)